Messages in this thread | | | Date | Tue, 06 Jul 1999 13:56:53 -0700 | From | Iain McClatchie <> | Subject | Re: File Conglomerations |
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Casey> So what, I hear you ask, does XFS do WRT this whole issue? Casey> Attributes are stored as name/data pairs and are stored using Casey> the same mechanisms as data.
Cool.
F/S: How are file attributes laid out on the disk? Do you pick up the attributes of all the files in a directory in one disk read? Do you use this attribute system to store permission bits and the like?
O/S: What is the interface to read an arbitrarily-sized attribute? Do you use the same interface to read permission bits?
NFS: Do you always transfer an attribute in one syscall, or do you have an open/read/close model? How does the buffer space to store an arbitrarily-sized attribute get allocated in user space? (The real question here is: does it take two round trips -- one to get the attribute size, and the next to do the read?)
-Iain
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